| Title | Contwoyto Lake area, North Half, District of Mackenzie |
| Download | Downloads |
| Author | Tremblay, L P |
| Source | Geological Survey of Canada, Paper 66-28, 1967, 20 pages, https://doi.org/10.4095/100959 |
| Year | 1967 |
| Document | serial |
| Lang. | English |
| Maps | Publication contains 1 map |
| Map Info. | geological, 1:63,360 |
| Media | paper; on-line; digital |
| Related | This publication contains Tremblay, L P; (1966). Geology,
Contwoyto Lake, North Half, District of Mackenzie, Geological Survey of Canada, Preliminary Map no. 10-1966 |
| File format | pdf |
| Province | Nunavut |
| NTS | 76E |
| Lat/Long WENS | -112.0000 -110.0000 66.0000 65.0000 |
| Subjects | regional geology; metallic minerals; structural geology; gold; Burnside River Formation; Goulburn Group; Kuuvik Formation; Peacock Hills Formation; Western River Formation; Yellowknife Group;
Precambrian |
| Illustrations | stratigraphic sections |
| |
| Released | 1967 01 01; 2016 02 02 |
| Abstract | The area south and west of Contwoyto Lake is underlain by Yellowknife-type sediments, their metamorphic equivalents, and granite. Unconformably overlying all these rocks are 2, 250 feet of Goulburn
Group strata. These cover all the area north and northwest of Contwoyto Lake. A large transgressive gabbro sill was mapped at different levels in the Goulburn Group . Several late gabbro dykes cut all the above rocks in a northwesterly d irec tion.
The Goulburn Group was subdivided into four formations : the Western River Formation, the Burnside River Formation, the Peacock Hills Formation and the Kuuvik Formation. The Western River Formation. about l, 35 0 feet thick, is composed mainly of
argillites and quartzites . The Burnside River Formation is almost enti rely pink quartzites and is about 600 feet thick. The Peacock Hills Formation is made up of argillites with some pink quartzi te and is less than 160 feet thick. The Kuuvik
Formation comprises carbonate rocks more than 140 feet thick . Gold has been reported from the garnet-amphibole-sulphides - quartz beds and lenses in Yellowknife -type sediments . The Canadian Nickel Co. showing is found near the southern boundary of
the map - area. |
| GEOSCAN ID | 100959 |
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